baber/WOPTO huggingface dataset:
Patent DE-3934896-A1 (DE)
Inventor: SEIT HORST
IPC: B60G15/06
Filed: 1989-10-19
Abstract: In the case of a limit stop damper for damping impact energy imparted to a motor vehicle wheel, which exceeds the impact energy compensatable by the suspension and by the main shock absorber, it is proposed to increase the working absorption capability. For this purpose a hydraulic stop damper (14, 15) is provided as replacement for the rubber springs hitherto used, which damper comprises an inner sleeve (16) having a bottom sleeve end (19), which sleeve is telescopically displaceable in an outer sleeve (17) having an upper sleeve end (20). Both sleeves are enclosed by an elastic collar (24), which is fixed on the outer edge of the upper and of the lower sleeve end (19, 20). When the two sleeves are telescopically compressed, hydraulic fluid is forced through the growing, axially extending annular gap (18), as a result of which impact energy is converted into frictional heat. The hydraulic fluid passes via a return duct (27) arranged in the lower sleeve end and provided with a non-return valve (28) back into the inner chamber enclosed by the inner and the outer sleeve. 
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Patent DE-3937718-A1 (DE)
Inventor: KRESSE FRANZ
IPC: A47L13/24
Filed: 1989-11-13
Abstract: An improvement with respect to both hygienic cleaning and the quantity of equipment involved is provided in a mop head (1) for washing or wiping floors which can be fitted on a mop holder (2) having two plastic flaps (3, 4) which can be folded back upon each other and having securing means (8) for fitting it to one end of a flap (4) of the mop holder (2). To this end, the fabric layer (11) has a pouch (13) on one short side and a strap (14) on the other, whereby the strap (14) can be tightly stretched on one flap end (4) with the aid of securing means (7, 8, 18).
Patent DE-3939274-A1 (DE)
Title: Synchronising drive for gearbox - has axially fixed gear wheel, on shaft with coupling, gearshift sleeve and two sloping gear surfaces
Inventor: KNOEDEL GUNTER
IPC: F16D23/06
Filed: 1989-11-28
Abstract: The gearbox synchroniser has an axially fixed gearwheel (4, 5) which is rotationally mounted on a shaft (1), and possesses a coupling (10, 11) with a first cogging (16, 17). An axially fixed guide sleeve (2) has a second gear (18) and is rotationally mounted on the shaft beside the coupling. An axially movable gearshift sleeve (20) has a third gearing and is concentrically positioned in relation to the guide-sleeve. The third gear has a first sloping surface (44), and the second (18) has a second sloping surface (34). USE/ADVANTAGE - The synchroniser is secured against the gears jumping out.
Patent DE-4001044-A1 (DE)
Title: Viscoelastic polyurethane foam with improved sound insulation - by reaction of poly:isocyanate(s) with polyether- and polyester-poly:ol mixts. contg. di:propylene glycol poly:adipate
Inventor: REICH ERHARD DR
IPC: C08G18/10
Filed: 1990-01-16
Abstract: Viscoelastic flexible PU foam material (I) are produced by reaction of (a) opt. modified polyisocyanates with (b) mixts. of polyether-polyols (b1) and polyester-polyols (b2) and opt. (c) low- mol.wt. chain-extenders in the presence of (d) catalysts, (e) blowing agents and opt. (f) other additives and auxiliary substances; the novelty is that (b2) are dipropylene glycol-adipic acid polyesters with OH no. 20-150. Mixts. (b) are claimed, comprising 15-50 pts.wt. polyether-polyols, polyoxypropylenepolyoxyethylene-polyols, polymer-modified polyoxyalkylene-polyols or mixts. of at least 2 of these types, and 50-85 pts.wt. (b2) as in 1. above. USE/ADVANTAGE - (I) are useful for the prodn. of sound insulating foam liners, etc., esp. to reduce the noise level in motor vehicles and machines; other applications include carpet backing, furniture, building components, etc. The invention provides (I) with improved relaxation properties, resulting in better sound insulation; the starting materials are relatively inexpensive, and miscible in the required proportions.
Patent DE-4003860-A1 (DE)
Title: Roof for hall - has roofing panels with edges which fit in grooves formed in hollow rafters
Inventor: NOLTING KLAUS DIPL ING
IPC: E04H15/64
Filed: 1990-02-09
Abstract: The roof of a hall or marquee, is formed from roof sections which are supported on rafters (2). Each roof section has edges (3a) of increased thickness and of circular cross-section. The rafters have hollow cross-sections with grooves (2a) near the corners of the upper face. These grooves are shaped to receive the thickened edges of the roof element (3). Each groove is connected by an opening (2c) with a rainwater gutter (26) which is formed as an integral part of the rafter.
Patent DE-4006012-A1 (DE)
Title: IC engine with variable compression space - has auxiliary cylinder connected to each main cylinder
Inventor: PEHLEMANN HORST DIPL ING
IPC: F02B75/32
Filed: 1990-02-26
Abstract: The horizontally opposed piston engine (1) is provided with a system to vary the volume of the compression space. This is achieved by installing a second smaller cylinder to the cylinder head of each main cylinder. A piston is fitted in this auxiliary cylinder and is connected to an auxiliary crankshaft mounted on the side of the cylinder head opposite to the main cylinder. By rotating this auxiliary crankshaft through a limited angle the position of the auxiliary piston in its cylinder can be varied. This operation varies the volume of the compression space when the main piston is at its top dead centre. USE - IC engine with variable compression ratio.
Patent DE-4020239-A1 (DE)
Title: Power-shift gearbox lubrication system
Inventor: LEBER FRITZ
IPC: F16H61/00
Filed: 1990-06-26
Abstract: Power-shift gearbox lubrication system comprises pump for lubricant and hydraulic fluid which actuates clutches to fill hydrodynamic unit and supply gear lubricator
Patent DE-4021400-A1 (DE)
Title: Antistatic shoe counteracting effect e.g. nylon stockings - has conducting main sole with electric contacts through insole
Inventor: KLEYBERG LAMBERT
IPC: A43B7/36
Filed: 1990-07-05
Abstract: The antistatic shoe has a conducting sole (2) and a shaped middle sole (3) upon which the insole (1) is mounted. The middle sole has additives to make it conducting. Electric contacts (5) from the middle sole to the foot are provided through certain sections of the insole. This effectively shorts the foot to the floor and prevents build up of static charge. The middle sole is shaped to the required foot contour and is made conducting by addition of carbon. A mixture of cork and latex forms the main constituent of the centre sole. The carbon addition is only in the central sections, leaving the edge sections the required colour/shade. The overall resistance between foot and floor is 10 to the power of 4, to 10 to the power of 8 ohms. ADVANTAGE - No risk of static charge; safer footwear.
Patent DE-4021440-A1 (DE)
Inventor: DENZ HELMUT DIPL ING
IPC: F02P5/04
Filed: 1990-07-05
Abstract: The invention relates to a device for preventing jerky operation in motor vehicles with torque correction via advance angle correction. According to the invention, a rotation speed differential is found from consequent revolution measurements. The revolution speed differential ( DELTA n) uses a characteristic ( DELTA  alpha ( DELTA nH)) via which a value for a correction advance angle delta alpha is formed which is added to a preliminary control value for the advance angle ( alpha zS), whereby the correction advance angle  DELTA  alpha is formed dependently upon the order of magnitude of the rotation speed differential  DELTA n in such a way that a torque correction in counter-phase to the jerk motion is given in accordance with a D portion in a regulating circuit. In an embodiment of the invention the rotation speed differential n is high-pass filtered (high-pass 13) or otherwise dynamically corrected.
Patent DE-4026021-A1 (DE)
Title: Paper-making press section
Inventor: STEINER KARL DR
IPC: D21F3/02
Filed: 1990-08-17
Abstract: In the press section, of a papermaking machine, two independent and continuous elastic pressure belts are at the two pressure gap points. At the first point, one side of the web is in contact with the first belt and the other side of the web is in contact with the other belt at the second point.
Patent DE-4026230-A1 (DE)
Title: Liq. filter for fuel tank - with simply manufactured mesh support in plastic casing
Inventor: SOYER WOLFGANG
IPC: B01D29/11
Filed: 1990-08-18
Abstract: Liq. filter for installation in a fuel tank has a relatively flat, hose-shaped, enclosed filter body (11) of elastic plastic fabric (12) contg. an elastic mesh-type support body (18) which is attached to the plastic fabric only in the region of a pipe connection (19). The fabric has a smooth surface adapted in shape and size to the support body and facing it, so that  it does not stick to the body other than at the pipe connection. ADVANTAGE - Simple and cheap, reduced number of parts for mfr..
Patent DE-4026993-A1 (DE)
Title: Fibre material air jet body - is composed of assembled sections with air flow channels directed at the material passage
Inventor: BROCKMANNS KARL-JOSEF DR ING
IPC: D02G1/16
Filed: 1990-08-25
Abstract: The airjet body to deliver compressed air at staple fibre sliver or yarn materials and the like, is composed of sections assembled together, behind each other, along the centre axis of the channel for the fibre material to pass through. At least one of the sections has the contour of at least one inflow channel which, longitudinally, runs on the plane where the sections are butted together. ADVANTAGE - The airjet assembly is easier to produce, with more precise tolerances and is made more cost-effectively than conventional jet assemblies.
Patent DE-4027952-A1 (DE)
Title: Electrical connector for vehicle steering wheel air-bag device - uses spiral wound electrical lead between inner and outer adaptors associated with relatively rotatable parts
Inventor: HAMSCHER MANFRED
IPC: H01R35/02
Filed: 1990-09-04
Abstract: The electrical connector uses a spiral wound electrical lead (15) extending between an external adaptor (17) fitted through the base of a stationary cylindrical housing part and an inner adapter (18) fitting through the base of a relatively rotatably housing part. Each adapter (17.18) is received by an opening provided in the sidewalls of the respective housing part via a projection around the outside of the adapter (17,18) fitting onto a corresponding reception groove around the edge of the opening. ADVANTAGE - Allows use of pre-assembled unit.
Patent DE-4029152-A1 (DE)
Title: Trough-like transport container with closure flap -  has upwardly slopingbanked edge to prevent water from collecting
Inventor: LOEBBERT JOHANNES
IPC: B65D90/00
Filed: 1990-09-14
Abstract: The trough-like transport container (1) has at least one closure flap (3) hanging at its rear end from an axis running across the longitudinal direction. The trough base (10) is designed at the end of the container as a rising banked edge (12) which drops down towards the flap (3) and forms a part of the stop face of the sealing edge. The banked edge (12) can protrude 15 to 30 cm over the trough base. The sealing edge between the flap (3) and banked edge stop face (14) can be covered with a compact sealing material such as rubber elastic sealing web over at least a part of the edge. USE/ADVANTAGE - Easier transport of e.g. waste materials without leakage of fluids.
Patent DE-4029418-A1 (DE)
Title: LF audio frequency response setting circuit -  has two adjusters with controllable transmission factors, controlled by two respective adjusting magnitudes
Inventor: MUELLER RUEDIGER
IPC: H03G9/02
Filed: 1990-09-17
Abstract: The circuit comprises two adjusters (2,3) with controllable transmission factors. The latter are controllable by two adjusting magnitudes (S1,2) respectively. They are engageable in common by the LF signal. The adjuster outputs (6,7) are interconnected with a network with at least one output (10). The adjusting magnitudes are interdependent. Pref. the interdependence is stored in a digital memory (11). The adjusting components (2-5) may have lo-wohmic outputs. For loud vol. adjustment the first adjuster (2,4) output (6) is coupled to input terminal of a low pass (8,9), with the second output (7) linked to the low pass foot point. USE/ADVANTAGE - For correct loudness control, esp. for fader control between front and rear loudspeakers in car. Uses conventional integrated circuits.
Patent DE-4029571-A1 (DE)
Title: Linear motor driven wheel-on-rail transport system -  is operated as double monorail with individual vehicles guided by roof mounted mobile elements of motors
Inventor: HARTL MAX DIPL ING
IPC: B60L13/03
Filed: 1990-09-18
Abstract: On a railway track (G1,G2) of standard gauge, independent monorail vehicles with sliding or swing doors (T) to their payload spaces (V) run on double-flanged wheels (L) and are guided laterally at roof level by their drive units (A) co-operating with the stators (M) of linear motors secured to headspans (U). The trolley-wire (F) serving conventional electric trains on the same track is suspended from the overhead structure as in tunnels and under bridges, midway between the two linear motor arrangements (A+M). ADVANTAGE - Overhead structure with supports at 30m intervals does not interfere with conventional rail traffic.
Patent DE-4031361-A1 (DE)
Title: Animal enclosure with reduced cleaning e.g. e.g. e.g. for birds - has wooden frame top, acrylic¨ walls with front grid and removable acrylic¨ plate with feeding bowl
Inventor: MELONI GIORGIO
IPC: A01K31/04
Filed: 1990-10-04
Abstract: Enclosure comprises frame (1), pref. of wood with four acrylic sheet walls and a wooden cover (11). Air gaps are left open in the four corners. A drawer (23) forms a removable base for litter exchanged. A rectangular opening (12) in the front acrylic wall (3) is closed by a grid (13) and a further rectangular opening (12) in the front wall (3) accepts an acrylic plate (15) on the inner surface of which a feeding basin is attached. USE/ADVANTAGE - Esp. for exotic birds, is simple to maintain and is less prone to internal soiling. (1/5)
Patent DE-4036825-A1 (DE)
Title: Sheet brake in delivery outlets of printing machines - has pneumatically biassed suction slits associated with each suction ring
Inventor: STEINBORN TILO DIPL ING
IPC: B65H29/68
Filed: 1990-11-19
Abstract: The sheet brake in the delivery of a printing machine comprises several suction rings (3) arranged over the machine width on a drive shaft wherein the suction slits are biased with suction air through suction bodies set at the end side in the upper segment area. Milled suction slits (8) are associated alternately with each suction ring (3) and are pneumatically biased on each side so that at least one suction slit is mounted active in the sheet guide area by means of the suction body (4,4'). The air outlet (9) associated with the suction body corresponds to the width of the suction slit in the suction ring. USE/ADVANTAGE - The suction rings are evenly biased with suction air without temporarily breaking the underpressure in the ring.
Patent DE-4038435-A1 (DE)
Title: Dowel for positive fixings on gas concrete structures - has reinforcement rods driven hooked shape into concrete without expanding pressure
Inventor: BECKENBACH LOTHAR
IPC: F16B13/04
Filed: 1990-12-01
Abstract: The dowel for fixing items on gas concrete structures has a basic element which has at its point a moulded sleeve (3) and bending faces (8) spread round the circumference. Reinforcement rods (5) are fixed evenly spread round the circumference on a counter member. These rods are guided through the moulded sleeve and are pressed out over the bending faces hook-shaped as the tension screw is tightened. The reinforcement rods can have a slide radius and a point at their free ends. ADVANTAGE - The rods engage in the brickwork as the screw is tightened to produce a stable positive connection without expanding fores which could break down the brickwork.
Patent DE-4108417-A1 (DE)
Title: Monitoring of sensors for controlling internal combustion engine - comparing frequency of occurrence of sensor signals to detect implausibility using counters
Inventor: WESSEL WOLF ING GRAD
IPC: F02D41/22
Filed: 1991-03-15
Abstract: The method of monitoring sensors which produce signals characterising the same operating state involves comparing the frequency of occurrence of the sensor signals. Errors are detected by detecting an implausibility when one of the sensors produces a signal more frequently than the others. Each sensor is associated with a counting system whose contents are a measure of the frequency of occurrence of the sensor signal. The counter contents are compared when one of them exceeds a defined threshold. USE/ADVANTAGE - Esp. for monitoring sensors for controlling an internal combustion engine. The method and arrangement prevent mistaken fault diagnosis.
Patent DE-4111596-A1 (DE)
Title: Machining welded plastic frame corners - in which corners are presented individually to machine which swivels through specified angle between machining stages
Inventor: MAURUS LEONHARD
IPC: B23Q7/16
Filed: 1991-04-10
Abstract: The invention relates to a process and machinery for machining excess material from the corners of welded plastic frames. Corners of the frame are fed individually to the machine allowing each one to be processed successively. Between each machining stage the processing machine swivels about an axis and combined with linear frame movement or simultaneous swivelling of the frame with the processing machine presents each corner for processing. The machine is mounted on a rotating frame which permits a 90 degrees swivelling action. Stops for frame location are positioned parallel to and perpendicular to the linear movement of hte frame. USE/ADVANTAGE - The process and machinery are used to remove the excess material produced during corner welding of plastic frames, e.g. windows and gives a faster process without increased cost
Patent DE-4118375-A1 (DE)
Title: Fail=safe braking control for motor vehicle by regulating power of IC engine - uses logic control to reduce engine to idling condition when brakes are applied and/or throttle is released
Inventor: BLUHM KLAUS-JUERGEN
IPC: B60K26/04
Filed: 1991-06-05
Abstract: The motor vehicle is fitted with a processor control incorporating a simple fail-safe braking control. This has a simple logic monitor for the engine speed and the brakes. A first loop has logic settings for engine running and idling. A second loop has logic settings for brakes off and on. The two systems are linked by an OR-circuit to reduce the engine speed to idling when the brakes are applied and/or when the throttle is released. The reduction of engine torque can also be applied by opening the clutch, or by other reduction means, e.g. timing or fuel control. A failure check circuit can be included. ADVANTAGE - Improved braking control and safety.
Patent DE-4120871-A1 (DE)
Title: Manually-controlled mechanical sweeper - which has roller brush connected to running wheels by cog-wheels with external teeth engaging with inner cogging
Inventor: KATENHUSEN HEINRICH
IPC: A47L11/22
Filed: 1991-06-25
Abstract: The manually-controlled mechanical sweeper has a roller-type brush (21-23) connected axially parallel to the running-wheels by cog-wheels (27,28;33,34) resting on free-wheels (29,30;35,36). One cog-wheel (27,28) engages with external teeth (31,32), while the other cog-wheel (33,34) engages with the inner cogging (37,38) of the adjacent running-wheel. A side broom is on the right hand side and is driven by a coupling on the right running-wheel. ADVANTAGE - Can be driven forwards and backwards along a narrow curved track at a speed set by the quickest rotating running-wheel, with the drive load evenly distributed for the user.
Patent DE-4122446-A1 (DE)
Title: Armoured vehicle fire prevention - divides incoming air into oxygen@ and nitrogen@-rich currents for crew and interior
Inventor: STENGER REINHARD
IPC: B60H3/00
Filed: 1991-07-06
Abstract: The armoured vehicle contains a system preventing fire and explosion and supplying respiratory air to the crew. The incoming ambient air (2) is divided by a separator (1) into a first oxygen-rich air current (3) delivered to the gas-masks (15) of the crew, and a second nitrogen-rich current (4) for the interior (7) of the vehicle and containers (8a, 9) in it, all of which have air outlets (16, 17, 10, 11). The second current can be directed into the fuel tank and auxiliary chambers in the containers. ADVANTAGE - Reduces oxygen in vehicle interior.
Patent DE-4123870-A1 (DE)
Title: Monitoring electronic assemblies with components on base carrier - measuring temp. at widely different points on carrier from variation in voltage applied to thermo-wires to detect burn through of components or conductor paths in module
Inventor: TUTSCH ELLI
IPC: H05K3/00
Filed: 1991-07-18
Abstract: The method of monitoring electronic assemblies consisting of a base carrier with components mounted on it involves continuously or discontinuously monitoring the temp. at widely different points on the base carrier. An electric voltage is applied to a sensor layer (2) in the base carrier. The variations in the voltage or associated current resulting from temp. changes in the base carrier are recorded. ADVANTAGE - Enables complete electronic assembly to be monitored at relatively low cost.
Patent DE-4126297-A1 (DE)
Title: Multi-section refuse bin for recycling materials - has lid with small chamber automatically causing opening of other chambers when opened
Inventor: BODISCO WOLF VON
IPC: B65F1/16
Filed: 1991-08-08
Abstract: The refuse bin (1) has e.g. five chambers which when the bin is closed are arranged in three planes one above the other. When the lid which contains the fifth chamber is opened the remaining four chambers can be opened at the top. A curved metal rod with hinges at the two ends leads from the lid to the back of the two lower chambers which are only loosely connected to the upper two chambers. The lower chambers have two support wheels at the front. The chamber of the lid is closed by an inner lid. USE/ADVANTAGE - Multi-section refuse bin gives more effective sorting of rubbish in one overall container.
Patent DE-4130474-A1 (DE)
Title: Game of numbered pieces laid flat - forms preferably animal, or eagle shape, when complete
Inventor: SCHOLZ ANITA
IPC: A63F9/06
Filed: 1991-09-13
Abstract: The game has flat pieces which are laid down, are geometrically different, and fit together to form a complete shape. Each piece placed down has at least one value obtained by a dice and which is marked on it. As the game proceeds, each piece can be removed from, or added to, the complete figure shaped like and animal such as an eagle. The majority of the pieces occur at least twice in the figure, to form a symmetrical figure. The pieces completely or partially overlap. ADVANTAGE - The game is played by any number of players of any age who must obtain the separate pieces by throwing a dice for the number marked on their underside.
Patent DE-4131793-A1 (DE)
Inventor: POETZSCHKE MANFRED DR
IPC: C23G1/36
Filed: 1991-09-24
Abstract: Described is a method of recycling the used pickling liquor, containing iron and/or zinc salts, which arises in the pickling of steel workpieces using mineral acids, the used pickling liquor being fed through an electrolytic bath operating with cation-exchange membranes.